Bolt's start: Not bad by any means in comparison with this field, Vicaut (ln 2) and Bailey-Cole (ln3) had bad starts. Collins in lane 1 had the lead at 10 meters, it appeared to me from the YouTube video. Bolt has moved his hands in closer, it seems to me, than he used to have them, his hips are higher and his front knee angle is greater than it used to be. (He also appears 6-8 lbs heavier, but that is another issue). With the higher hip placement he looks to be leaning out more in the set position, which I think hurts his power production a little. If Bolt looks back at film from two or three years ago, I think he sees some changes that have not proven beneficial.
Still in this race he had a good start.
Future: When I hard Bolt mention World Records I imagine some TV PR guy or meet manager holding up a cue card telling him to mention World Record. Whether he really believes he can run low 19's again, I have no idea, but that those with vested interest in him want him to say so, of that I have no doubts. I hope Bolt can stay healthy thru Rio.
As for Blake, I think Bolt missed him as much, if not more, as a training partner than as a competitor. I hope Blake recovers completely and keeps Bolt motivated.